Automobile-tractor.



W. at M. H. PATERSONJ UAUTOMOBILETRACTOR. APPLICAHON FILED AUG. 15.1911.

Patented June 11, 1918. 1

IIVVENTOR$ MZQW fim M )4 J m automobile tractors.

UMTED STATES PATENT fih l lfiEt WILLIAM IPATERSON AND MAY H. PATEBSON,0F OAKLAND, CALIFORNIA.

AUTOMOBILE-TRACTOR.

To all whom it may concern:

Be it. known that we, V ILLIAM PATERSON and MAY H. PATERSON, citizens ofthe United States, residing at Oakland, in the county of Alameda andState of California, have invented a new and useful Automobile- Tractor;

Our invention relates to improvements in It consists of a pair oftractor wheels, mounted upon the outer ends of an axle, so as to turnloosely thereon, said axle supports two transverse parallel arms, whichform a supplemental chassis made to correspond to and underlie thelongitudinal chassis of an automobile; said arms are pro vided withpillow blocks, near their rear ends, adapted to receive the outer endsof the tubes that-incase the rear driving axles of an automobile, therear wheels of the car being raised clear of the ground, the frontwheels of the car-being allowed to rest on the ground, to be used tosteer the vehicle; a small chain sprocket is fixed to the inside oroutside of the hubs or axles of each of the driving wheels of the car(which may remain thus attached while the car is used as a runabout),a'larger chain sprocket having a' pinion united to its hub, is mountedupon 7 and keyed to one end of a counter'shaft,

which is journaled parallel to the driving axle of the automobile uponthe said supplemental chassis, a similar chain sprocket having a unitedpinion on one side of its hub and a united sleeve and a clutch on theother side of its hub, is mounted loosely upon the other end of saidcounter-shaft, each of said larger chain sprockets are in alinement witheach of the small chain sprockets which are secured tov the hubs of thedriving wheels of the car, and a chain transmits rotary motion to thesprockets having the united pinions; said pinions engage with the teethof internal spur gear secured to the inner side of traction wheel tires;a clutch is slidably mounted'upon said counter-shaft, adapted to engagethe clutch on the united sleeve, and can be'shipped to lock thedifferential when necessarv the action and purpose of which ishereinafter more fully described, reference being had to theaccompanying drawing in Figure 1 is a top View of the auto, with bodyremoved, mounted upon. the supplemental chassis. I v

- Fig. 2 is a sideieleva'tion of the same, with body intact.

I Specification of Letters Patent.

Application filed August 15,

' exten 1917. Serial No. 186,414.

tractor, particularly ada ted to plowing,

cultivating and slow hau ing, without unduly impairing the fragilemechanism of an automobile or motor truck. A further object is to easilyand quickly attach or detach an entire automobile'or motor truck fromthe supplemental chassis. r

In the drawing A A represents the traction wheels, B B the supplementalrunning gear or chassis, D theaxle, C the countershaft having the chainsprocket 2, and united pinion 3, on one side of its hub, and a.projectinfsleeve and clutch ellon'its other side, ing through andrevolving in journal box 5, said united sprocket pinion sleeve andclutch turn freely on one end of counter-- Patented June 11, 1918.

longitudinal key-seat adapted to slide along a feathering key which isinserted in and mounted upon counter-shaft O engages with clutch A thuslocking the difierentlal, and can be disengaged by shipping lever 9; the

united pinion.3, mounted upon one end of counter-shaft C, meshes withthe teeth of internal spur gear 10, which is secured to the inside ofthe tire of traction wheel A; the united pinion 7 mounted uponthe otherend of counter-shaft C, meshes with the teeth of internal spur gear11,'which is secured to the inside of the tire of traction wheel A; thepillow blocks 12 and'13, are adapted to receive and clamp the tubes 14and 15 of the driving axles of the automobile to the supplementalchassis B B; the small chain sprockets 16 and 17 that are secured toftheinside or outside ofthe hubs or axles of the driving wheels of theautomobile, transmit through themedium of a chain, rotary mo tion to thechain sprockets 2 and 6, which are mounted on the counter-shaft C; theinclined plane18 formsarail for the tires of the auto to climb, inbacking the auto, so that the tubes 14 and 15 will register with thecavities 19 and 20, onpillow blocks 12 and '13; the clamps 21 and 22secure the tubes 14; and 15 to the pillow blocks12yand 13 onsupplemental chassis B B; a ackscrew 23, or other means, raises thesupple- 1 mental chassis B B' flush with and secured -i What we claim asnew and desire .to secure by Letters Patent is:

In a device of the class described, a tractor frame, tractor wheelssupporting the sai'ne', means transferring the drive roman automobilepartly supported on said frame to-said traction wheels, an integralcounter shaft journaledparallel to driving axle of said automobile, uponsaid frame, a chain 15,

sprocket and united pinion keyed to one end of saidcounter shaft, achain sprocket with united pinion on one side of its hub, a sleeve Iand'clutch united to the other side of its hub mounted turnably upon theother end of said counter shaft, said sleeve adapted to revolve aroundsaid counter shaft within a journal box, a slidable clutch having a keyseat adapted to slide on a'feathering key fixed on said counter shaft, ashipping lever adapted to slide said clutch into engagement withcorresponding jaws of clutch on said sleeve, said pinions mounted on andprojecting from each end of said counter shaft, meshing with internalspur gear secured within the tire of each traction wheel, the

. chain sprockets which are united to said pinions being in alinementwith the sprockets on the drive wheels of the automobile, as shown anddescribed and for the purposes set forth in the foregoing-specification.

WILLIAM PATERSON; MAY H. PETERSON.

Witnesses: I i

J AS. S. NAIsMITIe: JAs. S. NAIsMrrHF-L, t

